Ceiling slab support



Sept 6, 1932 F. J.. sTRAuB 1,876,359

CEILING SLAB SUPPORT Filed April 27, 1929 'lill/Il III l/ Patented Sept. 6, 1932 FRANCIS J. sTitAUB, or new KENSINGTON PENNSYLVANIA calmare SLAB SUPPORT Y Apimeauon; finea A'pnul y2r,

vMy invention is an improvement in build# ing construction and more particularly in the class of ceilingslabs of concreteorothersim-v ilar material. It has in view to provide easy if. and convenient means for supporting a slab or other similar section of ceiling, materia-l below main supporting elements, as I-be'arns or the like, toprovide a ycontinuous enclosing ceiling surface. I if* Also, whereby the several slabs may be easily and quicklyplaced in position and connected-with the flange or' ianges of the supporting structural members, vby means ofv movable elements mounted in the slaband 17' adapted to be withdrawn and to engage the structural members. Y f

In the class of ireproof construction, ceiling slabs or sections of suitable material, as concrete,tile, or the like, are usually preformed of any suitableaggregateof cementitious or refractory material', and are OrdinarJ ily reinforced by transverse metal rods or the like for strength, as isv geneally understood. The present invention is capable ofradaptation to any suchI ceiling elementl "or unit,- whether reinforced or not, for Ythe purpose of securely supporting it,- in the manner more fully hereinafter described. f

Referring to the drawing showing certain preferred embodiments ofthe invention: Fig. 1 is a transverse sectional view, partly broken away, showingA a continuous series of ceiling slabs supported from upper main 35 struc-tural members, according to my inven-4 tion; Fig. 2 is a plan view, partly broken away, of one such unit, with thel supporting elements extended at one end and pushed-in at m the other Y Fig. 3 isa sectional view similarv to' Fig. l, showing a modified construction of the slab members;

Fig. l is a plan view showing a further p 45' modification in the construction ofthe movable supporting elernent; f

Fig. 5 is a sectional view' through'one end of a slab, showing' an inserted bearing tube orV ferrule.

The ceiling slab 2 of concrete, tile, or any 1929. serial No. 358,543.'

-3 of suitablel structural shape, and preferably.

of I-beam form.l y

Beams 3 extend across between walls, col umns, or other main supports, and the ceiling slabs 2 are adapted to be connected therewith by the means hereinafter illustrated and described, comprising one or more movable bolts or similar devices, capable of being? withdrawn edgewse from the slab, for sup= porting engagement upon the beam larlgesfi.4 In the construction shown I utilizefnails or spikes 5, preferably having the `usual rter# minal heads, and insertible edgewise preformed sockets oropening's 6, located at su-itable positions inwardly of the edge' of the slab 2, at its opposite ends. y

The sockets may be pre-formed in the manufacture' of the slabs, and may be slightly. inclined as in Figs. l and 3,- or may be on the same general level or parallel with the upper and lower faces of the slab, as pr"e ferred. f A The inner end portions of the slab are preferably offset as shown, providing thek lower extensions 7 so as to substantially abut against the corresponding extended edge por'J tion of the next adjacent slab, for closure'.

Y The inwardly'ofl-set ends 8' of the slab provide ample space' surrounding the lower ianges l of the beam to permit of upward placementl of the slabs in application or'A erection, while at the same time providing thev intervening cavity for 'filling with 'rout` ing 9 of any suitable material, as in ig. 3: Such gure also shows, at l0, inwardly extending grooves or channels along the inner upper faceY of the slab, providing ase-l 9U" cure interlocking connection between the grouting and the slab at each side of the flanges, so that, should the principal supporting elements become -ruste'd or broken, the slab will be still maintained in position 95 against l falling'.-

ln Fig. 4, I show a y modified construction in` which a' U-shaped support, similar toa staple, is inserted by its endmost lugs' 1l within suitable receiving openings -6 i'n the im slab, and is provided with a transverse outer bar portion l2, adapted to rest upon the beam flange when withdrawn, as indicated in dotted lines.

In Fig. 5, I show a further modificat-ion in which the slab is provided with a lining or ferrule I3 of tubular form, in-

serted ina suitable cavity, either in manufacturing the slab or in a later formed hole. By such construction the spike or bolt 5 is provided with a mounting support providing for easy in-and-out sliding movement of the spike.

From the foregoing the construction and operation of the invention will be readily understood. Previous to elevating the particular slab to its position the spikes will be thrust inwardly, their heads in such position passing freely with clearance upwardly beyond the flange el., and when thus elevated the spikes are then drawn outwardly as in Fig. I, resting upon the inner portions of the flange at opposite sides.

When thus supported the entire weight of the slab will rest by such spike or bolt engagement, and the several slabs forming the entire ceiling are thus located. By properly positioning the openings 6, the slabs will all rest with their lower surfaces in alinement on a common plane.

Thereafter, upon filling the intervening space with the grouting 9, the entire construction is solidly incorporated, further strengthening and stabilizing the ceiling structure and at the same time fixedly engaging the spike heads against return movement, due to vibration or other causes.

It will be understood that any desired number of the movable supporting elements may be utilized and that they may be of any suitable or desired form, and located at any desired angle or position. The construction facilitates and reduces the time of erection work, and is extremely simple, cheap, and continuously serviceable.

Various changes or modifications may be made inthe detail construction of the parts or in their arrangement or location, or otherwise by the skilled mechanic. It will also be understood that the invention is applicable to use in connection with various flanged structural members, or in connection with any other form of support providing a bearing for the inner ends of the bolts, but all such changes are to be understood. as within the scope of the following claims.

What I claim is:

l.y A-ceiling slab having` at opposite ends inwardly extending closed bottom sockets provided with a tubular bearing and a supporting bolt movably mounted in each socket provided with a projecting supporting terminal.

2. In'combination with a pair of spaced 'Lef/635e ing bolt in each of said sockets having a I projecting terminal resting on the beam ange.

3. In combination with a vertical I-beam, a` pair of ceiling slabs located on a common plane with their adjacent ends terminating at each side of the beam each having a vertically disposed end face spaced beyond and above the flanges of the beam and provided with an inwardly extending closed end socket and a lower sloping extension projecting underneath the flange providing a grout containing cavity, and a freely movable` short supporting bolt in each of said sockets having a projecting terminal resting on each opposite beam flange.

t. In combination with a vertical I-beam, a pair of ceiling slabs located on a common plane with their adjacent ends terminating at each side of the beam each having a vertically disposed end face spaced beyond and above the flanges of the beam and provided with an inwardly extending closed end socket, an inner upwardly extending edge portion on each slab providing a grout-engaging off-set recess at each side of the beam, a lower sloping extension projecting underneath the flange providing with said recess a grout containing cavity, and a freely movable independent supporting bolt in each of said sockets having a projecting terminal resting on each opposite beam flange.

5. In combination with a plurality of spaced apart I-beams located on a common plane, a series of ceiling slabs having plane lower surfaces each provided with backwardly recessed lower edge portions `adapted to extend below each lower beam flange towards the edge portion of an adjacent slab and upwardly extending end faces providing a gap closing filling space around the flanges, the opposite end portions of each slab having closed bottom sockets provided with inwardly and outwardly movable supporting bolts adapted to be adjusted independently of the bolts at the opposite end of the slab in supporting engagement or disengagement with the adjacent flange of the beam.

6. In combination with a plurality of spaced apart I-beams located on a common plane, a series of ceiling slabs having plane lower surfaces each provided with backwardly recessed lower edge portions adapted to extend below each lower beam flange towards the edge portion of an adjacent slab and upwardly extending end faces providing a gap closing filling space around the flanges, the opposite end portions of each slab having closed bottom sockets provided with inwardly and outwardly movable supporting bolts adapted to be adjusted independently of the bolts at the opposite end or" the slab in supporting engagementor disengagement witli the adjacent flange of the beam, and a filling of grouting in the space between the adjacent slab terminals and around the beam flanges and imbedding the projecting portions of the bolts.

In testimony whereof I hereunto aiix my signature.

FRANCIS J. STRAUB. 

